<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>VSCode Extension Wireframe</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

        :root {
            --bg-primary: #1e1e1e;
            --bg-secondary: #252526;
            --bg-tertiary: #2d2d2d;
            --bg-active: #37373d;
            --text-primary: #cccccc;
            --accent-blue: #0e639c;
            --accent-green: #4ec9b0;
            --accent-blue-light: #569cd6;
            --accent-gray: #808080;
        }

        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            height: 100vh;
            display: flex;
            overflow: hidden;
        }

        /* Animations */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        @keyframes slideIn {
            from { transform: translateX(-20px); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }

        /* Left Sidebar */
        .activity-bar {
            width: 50px;
            height: 100vh;
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--bg-primary);
            animation: fadeIn 0.3s ease-out;
        }

        /* Document Explorer Panel */
        .explorer-panel {
            width: 300px;
            height: 100vh;
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--bg-primary);
            display: flex;
            flex-direction: column;
            padding: 15px;
            animation: slideIn 0.3s ease-out;
        }

        .panel-title {
            font-size: 14px;
            padding: 8px 15px;
            background-color: var(--bg-tertiary);
            margin-bottom: 15px;
            border-radius: 4px;
            font-weight: 500;
            letter-spacing: 0.5px;
            transition: background-color 0.2s;
        }

        .panel-title:hover {
            background-color: var(--bg-active);
        }

        .document-list {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .document-item {
            display: flex;
            align-items: center;
            padding: 12px;
            background-color: var(--bg-tertiary);
            gap: 12px;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.2s ease;
            animation: fadeIn 0.3s ease-out;
            animation-fill-mode: both;
        }

        .document-item:nth-child(1) { animation-delay: 0.1s; }
        .document-item:nth-child(2) { animation-delay: 0.2s; }
        .document-item:nth-child(3) { animation-delay: 0.3s; }

        .document-item:hover {
            background-color: var(--bg-active);
            transform: translateX(5px);
        }

        .document-item.active {
            background-color: var(--bg-active);
            box-shadow: 0 2px 8px rgba(0,0,0,0.2);
        }

        .status-indicator {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            transition: transform 0.2s ease;
        }

        .document-item:hover .status-indicator {
            transform: scale(1.1);
        }

        .status-approved {
            background-color: var(--accent-green);
            box-shadow: 0 0 10px rgba(78, 201, 176, 0.3);
        }

        .status-in-progress {
            background-color: var(--accent-blue-light);
            box-shadow: 0 0 10px rgba(86, 156, 214, 0.3);
        }

        .status-pending {
            background-color: var(--accent-gray);
        }

        .document-status {
            margin-left: auto;
            opacity: 0.8;
            transition: opacity 0.2s;
        }

        .document-item:hover .document-status {
            opacity: 1;
        }

        /* Context Library */
        .context-library {
            margin-top: 20px;
        }

        .context-item {
            background-color: var(--bg-active);
            padding: 12px;
            margin: 8px 0;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
            overflow: hidden;
        }

        .context-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--accent-blue);
            transform: scaleY(0);
            transition: transform 0.2s ease;
        }

        .context-item:hover {
            background-color: var(--bg-active);
            transform: translateX(5px);
        }

        .context-item:hover::before {
            transform: scaleY(1);
        }

        /* Main Editor Area */
        .main-editor {
            flex: 1;
            display: flex;
            padding: 15px;
            gap: 15px;
            animation: fadeIn 0.4s ease-out;
        }

        .editor-pane, .preview-pane {
            flex: 1;
            background-color: var(--bg-tertiary);
            padding: 20px;
            border-radius: 6px;
            display: flex;
            flex-direction: column;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            transition: transform 0.2s ease;
        }

        .editor-pane:hover, .preview-pane:hover {
            transform: translateY(-2px);
        }

        .preview-content {
            margin-top: 20px;
            flex: 1;
        }

        .diagram-preview {
            background-color: var(--bg-primary);
            border-radius: 6px;
            padding: 20px;
            margin: 10px 0;
            height: 200px;
            border: 1px solid var(--bg-active);
            transition: all 0.2s ease;
        }

        .diagram-preview:hover {
            border-color: var(--accent-blue);
            box-shadow: 0 0 10px rgba(14, 99, 156, 0.1);
        }

        .action-buttons {
            margin-top: auto;
            display: flex;
            gap: 12px;
            padding-top: 20px;
        }

        .btn {
            padding: 10px 24px;
            border-radius: 4px;
            border: none;
            cursor: pointer;
            font-size: 13px;
            font-weight: 500;
            transition: all 0.2s ease;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn:hover {
            transform: translateY(-1px);
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-primary {
            background-color: var(--accent-blue);
            color: #ffffff;
            box-shadow: 0 2px 8px rgba(14, 99, 156, 0.2);
        }

        .btn-primary:hover {
            background-color: #1177bd;
            box-shadow: 0 4px 12px rgba(14, 99, 156, 0.3);
        }

        .btn-secondary {
            background-color: var(--bg-active);
            color: var(--text-primary);
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .btn-secondary:hover {
            background-color: #454545;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }

        /* Navigation */
        .nav-links {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            background-color: var(--bg-active);
            padding: 10px;
            border-radius: 20px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
            z-index: 1000;
        }

        .nav-link {
            color: var(--text-primary);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 15px;
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            background-color: var(--accent-blue);
            color: white;
        }

        .nav-link.active {
            background-color: var(--accent-blue);
            color: white;
        }
    </style>
</head>
<body>
    <!-- Left Sidebar -->
    <div class="activity-bar"></div>

    <!-- Document Explorer Panel -->
    <div class="explorer-panel">
        <div class="panel-title">DESIGN DOCUMENTS</div>
        <div class="document-list">
            <div class="document-item active">
                <div class="status-indicator status-approved"></div>
                <span>Inception Plan</span>
                <span class="document-status">✓</span>
            </div>
            <div class="document-item">
                <div class="status-indicator status-in-progress"></div>
                <span>Functional Design</span>
                <span class="document-status">⋯</span>
            </div>
            <div class="document-item">
                <div class="status-indicator status-pending"></div>
                <span>Technical Design</span>
                <span class="document-status">-</span>
            </div>
        </div>

        <div class="context-library">
            <div class="panel-title">CONTEXT LIBRARY</div>
            <div class="context-item">Architecture Patterns</div>
            <div class="context-item">Design Templates</div>
            <div class="context-item">Code Standards</div>
        </div>
    </div>

    <!-- Main Editor Area -->
    <div class="main-editor">
        <!-- Editor Pane -->
        <div class="editor-pane">
            <div class="panel-title">EDITOR</div>
        </div>

        <!-- Preview Pane -->
        <div class="preview-pane">
            <div class="panel-title">PREVIEW</div>
            <div class="preview-content">
                <div class="diagram-preview"></div>
            </div>
            <div class="action-buttons">
                <button class="btn btn-primary">Approve</button>
                <button class="btn btn-secondary">Reject</button>
            </div>
        </div>
    </div>

    <!-- Navigation -->
    <div class="nav-links">
        <a href="index.html" class="nav-link active">Main View</a>
        <a href="usecase1.html" class="nav-link">New Document</a>
        <a href="usecase2.html" class="nav-link">Context Library</a>
        <a href="usecase3.html" class="nav-link">Review Process</a>
    </div>
</body>
</html>